<template>
<view class="">
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址 -->
    <my-address></my-address>
    <!-- 商品列表区域 -->
    <view class="cart-title">
      <uni-icons type="shop" size="18"></uni-icons>
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品数据 -->
    <uni-swipe-action>
     <block v-for="(goods, i) in cart" :key='i'>
        <uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(goods)">
          <my-goods :goods="goods" :showRadio="true" :showNum="true" @radio-change='radioChangeHandler'
            @num-change="numberChangeHandler"></my-goods>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    
    
    <!-- 结算组件 -->
    <my-settle></my-settle>
  </view>
  
  <!-- 购物车为空 -->
  <view class="empty-cart" v-else>
    <image src="../../static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也</text>
  </view>
</view>
</template>

<script>
  import badgeMix from '../../mixins/tabbar-badge.js'
  import {
    mapState,
    mapMutations
  } from 'vuex'
  export default {
    mixins: [badgeMix],
    computed: {
      ...mapState('m_cart', ['cart']),

    },
    data() {
      return {
        options: [{
          text: '删除', // 显示的文本内容
          style: {
            backgroundColor: '#C00000' // 按钮的背景颜色
          }
        }],
      };
    },

    methods: {
      ...mapMutations('m_cart', ['updateGoodsState', 'undateGoodsCount','removeGoodsById']),
      // 修改购物车商品选中状态
      radioChangeHandler(e) {
        this.updateGoodsState(e)
      },
      // 修改购物车商品数量
      numberChangeHandler(e) {
        this.undateGoodsCount(e)
      },
      // 点击了滑动操作按钮
      swipeActionClickHandler(goods) {
        this.removeGoodsById(goods.goods_id)
      }
    }
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px;
  }
  .cart-title {
    height: 40px;
    display: flex;
    align-items: center;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;

    .cart-title-text {
      font-size: 14px;
      margin-left: 10px;
    }
  }
  .empty-cart{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
    .empty-img{
      width: 90px;
      height: 90px;
    }
    .tip-text{
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
